Quote Originally Posted by Ventus View Post
Intermittently I will get the "unable to detect directx device" error while in windowed mode. I turned off windows aero and its usually fine but now randomly get it sometimes.
Okay, so the same thing the other Optimus users are getting.

I was going to suggest to disable DWM, but someone already did.

Just in case, bring up task manager. If you see "dwm.exe" running then go to the services tab and find "Desktop Window Manager". Disable it.

Can also run services.msc and set it to manual in there to stop it from starting with windows, provided that solves the problem.